Nuclide
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A nuclide is a nuclear-centric term, describing an atomic species by its nuclear composition and nuclear energy state.
A nuclide has a specific number of protons and neutrons, and will additionally have a specific energy state of its nucleus.
Radionuclides are unstable nuclides that undergo radioactive decay.
Types of nuclides are demonstrated below:
- isotopes- same atomic number (Z)
- isotones - same neutron number (N)
- isobars- same mass number (A)
- isomers- same atomic (Z) and mass (A) numbers, different energy states
History and etymology
Truman Kohman, a 20th century American chemist, proposed the use of the terms nuclide in 1947 (and its derivative radionuclide), as a more specific substitute for the terms isotope and radioisotopesradioisotope. This recommendation was not widely usedadopted in scientific literature until the 1960s.
-<p>A <strong>nuclide </strong>is a nuclear-centric term, describing an atomic species by its nuclear composition and nuclear energy state.</p><p>A nuclide has a specific number of protons and neutrons, and will additionally have a specific <a title="Nuclear shell model" href="/articles/nuclear-shell-model">energy state</a> of its nucleus.</p><p><strong>Radionuclides</strong> are unstable nuclides that undergo radioactive decay.</p><p>Types of nuclides are demonstrated below:</p><ul>- +<p>A <strong>nuclide </strong>is a nuclear-centric term, describing an atomic species by its nuclear composition and nuclear energy state.</p><p>A nuclide has a specific number of protons and neutrons, and will additionally have a specific <a href="/articles/nuclear-shell-model">energy state</a> of its nucleus.</p><p><strong>Radionuclides</strong> are unstable nuclides that undergo radioactive decay.</p><p>Types of nuclides are demonstrated below:</p><ul>
-<strong><a title="Isotone" href="/articles/isotone">isotones</a> </strong>- same neutron number (<em>N</em>)</li>- +<strong><a href="/articles/isotone">isotones</a> </strong>- same neutron number (<em>N</em>)</li>
-<a title="Isobar" href="/articles/isobar"><strong>isobars</strong></a> - same mass number (<em>A</em>)</li>- +<strong><a href="/articles/isobar">isobars</a></strong> - same mass number (<em>A</em>)</li>
-<a title="Isomer" href="/articles/isomer"><strong>isomers</strong></a> - same atomic (<em>Z</em>) and mass (<em>A</em>) numbers, different energy states</li>-</ul><h4>History and etymology</h4><p>Truman Kohman, a 20th century American chemist, proposed the use of the terms nuclide in 1947 (and its derivative radionuclide), as a more specific substitute for the terms isotope and radioisotopes. This recommendation was not widely used in scientific literature until the 1960s.</p><p> </p>- +<a title="Isomer" href="/articles/isomer"><strong>isomers</strong></a> - same atomic (<em>Z</em>) and mass (<em>A</em>) numbers, different energy states</li>
- +</ul><h4>History and etymology</h4><p>Truman Kohman, a 20th century American chemist, proposed the use of the terms nuclide in 1947 (and its derivative radionuclide), as a more specific substitute for the terms isotope and radioisotope. This recommendation was not widely adopted in scientific literature until the 1960s.</p><p> </p>
References changed:
- 2. Simon R. Cherry, James A. Sorenson, Michael E. Phelps. Physics in Nuclear Medicine E-Book. (2012) ISBN: 9781455733675 - <a href="http://books.google.com/books?vid=ISBN9781455733675">Google Books</a>
- 1.Angela N. H. Creager. Life Atomic. (2013) ISBN: 9780226017945 - <a href="http://books.google.com/books?vid=ISBN9780226017945">Google Books</a>
Sections changed:
- Imaging Technology
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